Fire stopping in Dunbridge
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Dunbridge. Send photographs or drawings for a fixed quote.
- Fire-stopping items raised at inspection or handover
- Openings found when ceilings come down for a refit
- Fire seals cut back for extra cables and never reinstated
Fire stopping across Dunbridge
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Dunbridge
Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. We use sealant where it is the specified product, and we tell you when a detail calls for something else. Most enquiries involve hidden openings found during inspections and builders’ foam or ordinary silicone in compartment walls, on cable penetrations, pipe penetrations and small duct penetrations where the tested detail allows. A specialist sealant contractor works differently from a general builder: on jobs in Dunbridge, preparation and product choice get the time they need.
Rural conversions around Dunbridge can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Where
- Dunbridge (SO51)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
On site: what to expect
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. If others near Dunbridge need work, visits can be combined, which keeps travel down. You’ll have a fixed quote before work starts.
- First we confirm the product and tested details named in the specification.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
What we need from you
- For older buildings, check the asbestos register before work
- Arrange parking or a loading space
- Tell us your opening times and when work is allowed
Get a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Advice
Questions we’re asked in Dunbridge
What does the BS 476 change mean for fire-rated sealant in Dunbridge?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Is Home Farm Business Centre, near Dunbridge, within your area?
Yes. Estates, retail parks and business parks around Dunbridge, Home Farm Business Centre among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Can one quote cover more than one building?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
How long does a job like this take?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can staff carry on working while you’re here?
In the majority of cases, yes. We phase the work so most of the building stays in use.
Nearby places to Dunbridge
Other services in Dunbridge
For managing agents and facilities managers
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Dunbridge can form part of a wider programme.
When something else is needed
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Plastic pipes whose detail calls for a collar or wrap
- Construction that lacks the fire resistance the seal relies on
- Designing or specifying fire stopping, which sits with the designer or fire engineer
Not sure which it is? You can call 01277 525 020 or send photos by email and we will tell you honestly.
Joints and surfaces we work on
- Pipe penetrations
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Cable penetrations
- Joints between fire-resisting walls and floors
Common problems we fix in Dunbridge
Mixing products or improvising a detail breaks the link with the test evidence. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are what we find most often.
Most enquiries start with something like this:
- Service penetrations left open after M&E works
- Improvised or mixed-product fire seals
- Open linear gaps along the top of fire-resisting walls
- Seals disturbed by maintenance and left open
Schools such as Awbridge Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.
Comparing quotes
- Their plan for phasing and protecting the area
- Proof of insurance
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Who will actually carry out the work
Should maintenance staff do it?
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Penetration seals near Dunbridge
Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. Dunbridge lies roughly 70 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal.
On a site such as Home Farm Business Centre (2.1 miles north-west of Dunbridge), every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product. For a hospital such as Romsey Community Hospital (3.9 miles south-east of Dunbridge), penetration sealing is usually phased ward by ward, with infection-control rules agreed first.
Dunbridge is about 4 miles north-west of Romsey, in Hampshire. We send applicators to Dunbridge for service penetrations, handled exactly as we handle every other area. Dunbridge is one of 723 places we cover in Hampshire for service penetrations. For work in that direction, see our Southampton page.
We take on service penetrations across the SO51 postcode area. We also cover Mottisfont (1 mile north-east), Kimbridge (1 mile south-east), Stonymarsh (1 mile north-east), Carter's Clay (1 mile south-west) and Lockerley (1 mile west) for service penetrations. Bigger towns within reach include Winchester (10 miles east), Eastleigh (10 miles south-east), Andover (13 miles north), Totton (8 miles south), Chandler's Ford (8 miles south-east) and Hedge End (13 miles south-east).
Around Dunbridge
We work on buildings around The Bear And Ragged Staff Public House. Dunbridge has its own railway station: Mottisfont & Dunbridge station. Other landmarks nearby include Romsey Community Hospital (3.9 miles south-east) and King Johns House (3.5 miles south-east).
What the job involves on each surface
Metal pipes
Heat travels along metal pipework. We follow whatever the detail requires and flag anything we can’t match.
Drylining partitions
Service holes through plasterboard are frequently oversized or ragged. If the gap exceeds the tested range, sealant alone won’t do and we will tell you what the detail says instead.